[PATCH v4 01/10] power-domain: Return 0 if ops unimplemented and remove empty functions

[sbabic at denx.de]

> In case the ops is not implemented, return 0 in the core right away.
> This is better than having multiple copies of functions which just
> return 0 in each power domain driver. Drop all those empty functions.
> Signed-off-by: Marek Vasut <marex at denx.de>
> Cc: Patrick Delaunay <patrick.delaunay at foss.st.com>
> Cc: Simon Glass <sjg at chromium.org>
Applied to u-boot-imx, master, thanks !

Best regards,
Stefano Babic

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